Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Review: 98

Answer

$4x-9y$

Work Step by Step

$(2\sqrt x-3\sqrt y)(2\sqrt x+3\sqrt y)$ =$(2\sqrt x)^{2}-(3\sqrt y)^{2}$ =$4(x)-9(y)$ =$4x-9y$
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